3231130391 has 2 divisors, whose sum is σ = 3231130392. Its totient is φ = 3231130390.

The previous prime is 3231130387. The next prime is 3231130393. The reversal of 3231130391 is 1930311323.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3231130391 - 2² = 3231130387 is a prime.

Together with 3231130393, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3231130391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3231130393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615565195 + 1615565196.

It is an arithmetic number, because the mean of its divisors is an integer number (1615565196).

Almost surely, 2^3231130391 is an apocalyptic number.

3231130391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231130391 is an equidigital number, since it uses as much as digits as its factorization.

3231130391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 3231130391 is about 56843.0329152131. The cubic root of 3231130391 is about 1478.3757428822.

The spelling of 3231130391 in words is "three billion, two hundred thirty-one million, one hundred thirty thousand, three hundred ninety-one".